Portable computer



FIG. 1 is the front/right-side/top perspective view of a portable computer showing our new design;

FIG. 2 is the front-side elevational view thereof;

FIG. 3 is the rear-side elevational view thereof;

FIG. 4 is the left-side elevational view thereof;

FIG. 5 is the right-side elevational view thereof;

FIG. 6 is the top-side elevational view thereof; and,

FIG. 7 is the bottom-side elevational view thereof.

The broken lines shown in the drawings represent portions of the portable computer that form no part of the claimed design. 

CLAIM The ornamental design for a portable computer, as shown and described. 